DE4396943T1 - Optisches System mit veränderlichem Fokus zum Datenlesen - Google Patents

Optisches System mit veränderlichem Fokus zum Datenlesen

Info

Publication number
DE4396943T1
DE4396943T1 DE4396943T DE4396943T DE4396943T1 DE 4396943 T1 DE4396943 T1 DE 4396943T1 DE 4396943 T DE4396943 T DE 4396943T DE 4396943 T DE4396943 T DE 4396943T DE 4396943 T1 DE4396943 T1 DE 4396943T1
Authority
DE
Germany
Prior art keywords
optical system
reading data
variable focus
focus
variable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE4396943T
Other languages
English (en)
Other versions
DE4396943B4 (de
DE4396943B9 (de
Inventor
Robert W Rudeen
Thomas C Arends
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datalogic Scanning Inc
Original Assignee
Spectra Physics Scanning Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/992,932 external-priority patent/US5347121A/en
Application filed by Spectra Physics Scanning Systems Inc filed Critical Spectra Physics Scanning Systems Inc
Publication of DE4396943T1 publication Critical patent/DE4396943T1/de
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10683—Arrangement of fixed elements
    • G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10792—Special measures in relation to the object to be scanned
    • G06K7/10801—Multidistance reading
    • G06K7/10811—Focalisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K2207/00—Other aspects
    • G06K2207/1013—Multi-focal
DE4396943T 1992-12-18 1993-12-16 Optisches System mit veränderlichem Fokus zum Datenlesen Pending DE4396943T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/992,932 US5347121A (en) 1992-12-18 1992-12-18 Variable focus optical system for data reading
US08/164,300 US5479011A (en) 1992-12-18 1993-12-07 Variable focus optical system for data reading
PCT/US1993/012312 WO1994015351A1 (en) 1992-12-18 1993-12-16 Variable focus optical system for data reading

Publications (1)

Publication Number Publication Date
DE4396943T1 true DE4396943T1 (de) 1995-01-26

Family

ID=26860427

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4396943T Pending DE4396943T1 (de) 1992-12-18 1993-12-16 Optisches System mit veränderlichem Fokus zum Datenlesen
DE4396943A Expired - Fee Related DE4396943B9 (de) 1992-12-18 1993-12-16 Optisches System mit veränderlichem Fokus zum Datenlesen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4396943A Expired - Fee Related DE4396943B9 (de) 1992-12-18 1993-12-16 Optisches System mit veränderlichem Fokus zum Datenlesen

Country Status (3)

Country Link
US (3) US5479011A (de)
DE (2) DE4396943T1 (de)
WO (1) WO1994015351A1 (de)

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Also Published As

Publication number Publication date
US5641958A (en) 1997-06-24
US5945670A (en) 1999-08-31
US5479011A (en) 1995-12-26
DE4396943B4 (de) 2004-04-01
WO1994015351A1 (en) 1994-07-07
DE4396943B9 (de) 2004-10-14

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